Impact of sin on speech in Job 15:5?
How does Job 15:5 reveal the impact of sin on our speech?

Setting the Scene

“ For your iniquity teaches your mouth,

and you choose the language of the crafty.”

Job 15:5

Eliphaz directs this charge at Job, yet the Spirit-inspired words unveil a timeless principle: sin is never content to stay hidden; it trains the tongue to spread its influence.


Sin as a Tutor of the Tongue

• “Your iniquity teaches your mouth” – Wrong desires become an instructor, shaping vocabulary, tone, and timing.

• “You choose the language of the crafty” – The will cooperates, selecting expressions that disguise, manipulate, or wound.


Spiritual Dynamics Behind Corrupt Speech

1. Internal corruption flows outward

Matthew 12:34: “For out of the abundance of the heart, the mouth speaks.”

2. The tongue becomes a weapon

James 3:6: “The tongue is a fire, a world of iniquity… it sets the whole course of life on fire.”

3. Deceit accompanies disobedience

Psalm 36:3: “The words of his mouth are wicked and deceitful; he has ceased to be wise and do good.”


Consequences of Sin-Driven Words

• Damaged relationships (Proverbs 16:28)

• Distorted witness (Ephesians 4:29)

• Self-deception (Jeremiah 17:9)

• Hardened heart (Hebrews 3:13)


The Path to Redeemed Speech

• New heart through Christ (Ezekiel 36:26)

• Daily submission to the Spirit (Galatians 5:16)

• Scripture saturation (Psalm 119:11)

• Honest confession when we fail (1 John 1:9)


Practical Steps for God-Honoring Words

1. Begin the day in the Word, letting truth set tone and vocabulary.

2. Pause before speaking; filter thoughts through Philippians 4:8.

3. Replace crafty language with gracious, seasoned speech (Colossians 4:6).

4. Invite accountability—allow trusted believers to point out sinful patterns.

5. Celebrate growth: every Christ-shaped sentence testifies to His power over sin.

What is the meaning of Job 15:5?
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